Take That star Gary Barlow has signed up some of the biggest names in British music, including Leona Lewis and Coldplay's Chris Martin (pictured), to take part in a special one-off gig in London later this year.

The concert will be held at London's Royal Albert Hall to raise money for Children In Need and Gary's comedian friend Peter Kay has reportedly agreed to compere the musical extravaganza.

Dad-of-three Gary - currently on a stadium tour with Take That - was inspired to organise the live show after climbing Mount Kilimanjaro for Comic Relief earlier this year. Bitten by the fundraising bug, the 38-year-old is believed to have made a decision to support more charities as soon as he completed his descent.

"Children In Need bosses have discussed a number of ideas with him but Gary thought it would be a good idea if he put his musical skills to their best use," a source has revealed.

"He knows a lot of people and is widely respected so putting together a star bill has been plain sailing."

"Take That are going to perform and there will be a whole host of surprises throughout the evening."